Thor vs Hercules Slot by Pragmatic Play

Before any spin happens, the game makes you commit. Pick Olympus and Hercules takes over the right rail - high volatility, your stake gets multiplied by 200, RTP sits at 96.05%, and the Buy Free Spins price is 75x. Pick Asgard and Thor's hammer crest lights up instead - very-high volatility, the bet multiplier doubles to 400x (so the same coin value costs twice as much per spin), RTP nudges to 96.07%, and the Buy price climbs to 150x. The paytable, the 15 lines, the 5x5 grid and the 15,000x ceiling stay identical. What changes are the reel strips beneath the hood - Asgard's run leaner with rarer hits, longer cold stretches, and the bigger swings that justify the doubled bet. The mode switch lives on a permanent left-rail scroll labelled Choose Volatility, so you can flip it spin-by-spin without exiting the game.

The Expanding Wild is the engine in both modes. When a Wild lands and would create at least one winning line after expanding to cover the full reel, it does exactly that and gets handed a random multiplier from a wide ladder: 2x, 3x, 4x, 5x, 6x, 7x, 8x, 9x, 10x, 20x, 25x, 50x or 100x. Two or more Expanding Wilds in the same combination is the headline interaction - the multipliers add together first, then apply to the win. So three Wilds rolling at 50x, 25x and 10x become a single 85x multiplier on that payline, not three separate steps. Wilds appear on all five reels in both base and bonus.

Free Spins trigger on three Scatters across reels 1, 3 and 5 and run for 10 spins with no retrigger. The interesting twist is stickiness: any Expanding Wild that hits during the round locks to its reel with its multiplier intact and stays for the rest of the spins. So as the round progresses, more reels get covered by sticky multiplier columns. The free-spin reel set is also wild-heavier than the base game, which is why the published max-win hit rate (roughly 1 in 1.3 million spins in Olympus, 1 in 1.7 million in Asgard) is so concentrated in this round.

The Buy Free Spins button on the left rail offers two prices per mode: the standard purchase, or a 300x premium that guarantees at least one Expanding Wild on the very first free spin (slight RTP uplift in Olympus, slight downtick in Asgard). The frame around the reels is carved wood and gold with horn motifs at the corners, the Asgard mode swaps in frozen pillars and a glacial bridge behind the playfield, and the symbol set blends pantheons: Thor's portrait alongside Hercules', drinking horns, ravens, wolf heads and golden hammers, with gilded card royals at the low end. A genuine novelty for a Pragmatic Play release - the mode toggle is usually buried as an ante-bet option, here it's the first decision you make.